● Duval Mine Rd, Sahuarita [Pima Co], AZ USA [el. 882 m / 2893 ft] view location in Google Maps »
● 11/06/10 7:47AM sunny, air temp: 17°C / 62°F
When I first arrived, this large M. pergandei nest was relatively quiet, with just a few workers active. That all changed dramatically however, when the direct rays of the morning sun hit the nest at about 7:45AM. At this point, with an air temperature of 18°C / 64°F, hundreds off eager foragers poured out of the nest entrance in a single, wide column. This image shows the differently-sized workers that are are produced by the colony as availability of resources fluctuates during the year. [scroll down for additional notes/references]
·Rissing, S.W. 1986. Annual Cycles in Worker Size of the Seed Harvesting Ant Veromessor pergandei (Hymenoptera: Formicidae). Behavioral Ecology and Sociobiology (1987) 20:117-124
- Pogolumina - Pogonomyrmex Harvester Ants of North America
Images of Messor harvester ants in Arizona, USA. More coming soon! Scroll down PAST BOTTOM OF PAGE for complete image description, and CLICK large image to make it even LARGER...
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